Someone please help me with this I don’t understand it that well

Well if you are wanting me to do the one that says Determine whether the figure at the right is a reflection of the figure at the left, then for 1). you would put that it is not the reflection. for 2). you would say it is the reflection. For 3) you would put that it is not the reflection... Hope this helps... :)

Step-by-step explanation:

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.